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Matter summary

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Fill in the blanks to summarise our topic on the structure and properties of matter.

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Matter summary

Fill in the blanks to summarise our topic on the structure and properties of matter.

Belinda Schirmer
1

atomic neutrons nucleus protons protons electrons

The atom is composed of a surrounded by orbiting negatively charged . Inside the nucleus are positively charged and neutral .
Each element has a unique number of . The number of protons in an atom is called its number .

2

metalloids physical metals molecules bonds Water hydrogen oxygen

Atoms can join together by chemical to form . Hydrogen molecules consist of two atoms of joined together . Ozone molecules consist of three atoms of joined together . molecules consist of two atoms of hydrogen and one atom of oxygen joined together .
Elements can be classified as , non - metals and . This classification scheme is based on their and chemical properties .

3

fluorine iron poor malleable electricity brittle sulfur gold good electricity

Metals are shiny and and are conductors of and heat . Non - metals are dull and and are non - conductors of and heat conductors .
Common metals include copper , zinc , , lead , mercury , and silver . Common non - metals include hydrogen , , chlorine , , phosphorus and carbon .

4

zinc silver chlorine allotropes carbon graphite symbol

Each element has its own . The symbols for some common elements are : Cu ( copper ) , Zn ( ) , Au ( gold ) , Hg ( mercury ) , Fe ( iron ) , Ag ( ) , H ( hydrogen ) , F ( fluorine ) , Cl ( ) , S ( sulfur ) , P ( phosphorus ) and C ( carbon ) .
Some elements exist in different structural forms called . Thus can exist as diamond and .

5

properties mixtures alloys fixed electrical decompose compounds elements separated

Different elements can combine chemically to form . Compounds contain a number of atoms of each element and their differ from their component elements .
Compounds differ from . In mixtures the components are not chemically bonded . Thus of metals are mixtures as the components can be readily .
Heat or energy must be used to a compound back into its component .